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【简答题】
在外加电场的作用下,电介质中出现有序排列的电偶极子,表面出现束缚电荷的现象称为()。
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皮皮学刷刷变学霸
举一反三
【多选题】当 用观察法 研究 学生 每天在食堂中的各类行为和现象时,以下哪些内容你认为是有必要获取到的( )
A.
学生在食堂是买的何种食物，价格怎么样
B.
选择时的犹豫程度
C.
就餐时是否对食物流露出 “ 喜爱 ” 或 “ 嫌弃 ” 的表情
D.
选择在食堂就餐还是打包
【单选题】What was the tradition the shoe repairer's father passed on to him?
A.
Being dedicated to work and feeling proud.
B.
Treating all the clients with hopiality.
C.
Running the shoe-repair shop successfully
D.
Finding pleasure in what a person does
【简答题】Scan Paras. 1-3 and fill in the blanks. The shoe-repairer went quickly into a shop to ____________________ and was greeted with a __________ and _____________ by the shoe repairer.
【简答题】观察法的种类有哪些?
【单选题】What was the tradition the shoe repairer's father passed on to him?
A.
Being dedicated to work and feeling proud.
B.
Treating all the clients with hospitality.
C.
Running the shoe-repair shop successfully.
D.
Finding pleasure in what a person does.
【简答题】设X的概率密度为 ,求D(X). 解:E(X)= =y6, =y9, D(X) =y10. 这里,y1= ,y2= ,y3= ,y4= , y5= , y6= ,y7= ,y8= ,y9= ,(y9用最简分数表示,形如a/b) y10= .(y10用最简分数表示,形如a/b)
【单选题】下列各缝线的折除时间,哪个不正确
A.
头、面颈部4~5日拆线
B.
下腹部、会阴部6~7日折线
C.
腹部、上腹部和背部10~12日拆线
D.
近关节处可12日以后拆线
E.
减张缝合14日拆线
【单选题】what was the tradition the shoe repairer's father passed on to him?
A.
being dedicated to work and feeling proud
B.
treating all the clients with hospitality
C.
runing the shoe repair shop successfully
D.
finding pleasure in what a person does
【多选题】有关低倍镜观察，下列哪些说法是不正确的
A.
观察涂片染色情况
B.
对巨核细胞进行计数和分类
C.
判断分裂象细胞的多少
D.
观察各种的细胞形态特点
E.
涂片中是否存在胞体大、成堆的异常细胞
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